Delivery mechanism.



T. G. SHEEHAN. DELIVERY MECHANISM.

\ APPLICATION FILED 1111.27, 1914.

1,123,024; 1 -Pate11ted De0.29,1914.

2 SHEETS-SHEET 1.

T. c. SHEBHAN. I DELIVERY MECHANISM.

. I APPLICATION FILED JAN.2'I, 1914. 1,123,024; I Patented Dec.29, 1914.

2 SHEETS-SHEET 2.

wnesssz v I UNITED STATES PATENT OFFICE.

THOMAS C. SHEEHAN, OF ESSEX FELLS, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO AMERICAN HIGH SPEED PRESS COMPANY, OF NEW YORK, N. Y., A COR- PORATION OF NEW YORK.

DELIVERY MECHANISM.

Original application filed August 29, 1906, Serial No. 332,470. Divided and 27, 1914. Seria1 No.814,673.

Z '0 all whom it may concern:

Be it known that I, THOMAS Cl SHEEIIAN, a citizen of the United States, residing at Essex Fells, in the county of Essex and State of New Jersey, have invented a new and useful Delivery Mechanism, of 'which the following is a specification.

This is a divisionof my application Serial N 0. 332,470 filed August 29,1906, for a printingmachine.

The present invention relates particularly to that class of ob printing machines known as self-feeding automatic platen presses.

My invention provides for a novel and improved construction and arrangement of parts in such a manner that the noise and vibration incidental to the operation of the machine are reduced, if'not entirely absent.

In order to remove the sheet after it has been printed, I provide a delivery gripping mechanism, which is adapted to act as'a i'lv as well as to grip the sheet and deliver it to the delivery table, said sheet being delivered outside or over the first gripper instead of through as has heretofore been the usual practice. I

Other valuable features, as well as a preferred form of carrying out the. invention,

are disclosed in the following specification' and the accompanying drawings, in which Figure 1 is a side elevation of a press embodymg my invention. Fig. 2 is a view showing the position of the delivery grippers while the sheet is being printed. Fig. 3 is a similarview showing the sheet gripped by the delivery grippers. Fig. l is a view looking towardthc platen, and showing the gripper mechanism, and Fig. 5 is a detail view showing the mechanism for retracting the grippers.

The reference numeral 1 indicates the side frames of the machine, for suitably supporting the component parts of the same. The said frames are connected in any suitable and conventional manner.

4 indicates the main driving pinion to which power is applied in any suitable manner.

indicates the bed carrying the inking mechanism of well known construction and therefore not shown. The bed is pivoted in the frame at (3 and oscillates in the well known manner. Motion is applied to a Specification of Letters Patent.

Patented Dec. 29, 1914. this application filed January shaft 14 by means of a gear 15 meshing with the aforesaid pinion 4. The said gear has a crank to transmit motion to ashaft 16 means of a rod 17 and crank 18. Upon said shaft the deliver gripping mechanism is mounted by means of The gripping mechanism illustrated comprises a gripper rock shaft 67, below the platen 87, on which shaft are mounted grippers 68, which set against a gripper bar 69, provided with cutout portions 70, for the delivery grippers. r

hen the printing of the sheet is finished the grippers 68 are opened and the sheet is released, ready to be removed from the platen 87 by means of the delivery. gripper which will be described below. The grippers move out of the way to allow for this preferably by means shown in myrompanion case Serial No. 814,672, filed on even date herewith on a gripper feed. The mechanism for thus moving the grippers is shown in Fig. The gripper bar 69 and the rock shaft 67 are supported upon carriers 71 which are pivoted at 72 to collars 73 (Fig. r) which are rigidly secured to longitudinally sliding rods 74. each provided with rolls 98 each positioned to travel upon a cam track 31) pivoted at 90 to the frame of the n'lachine. At its lower end each cam track is provided with a roll 91 contacting with a cam 92 mounted upon a rotating shaft 93. At its lower end the cam track is also provided with a recessed portion 107. As the rods 74 with the grippers attached thereto travel downwardly relatively-to the 021111 tracks 89 the rolls 88 move along the straight intern'iediate portion of the cam tracks and the gripping mechanism travels in a line parallel with respect to the face of the. platen. As the carriers approach the lower end of the track the roll 88 moves backward into the recess 107, and atthe same time the cam 9:! reaches a position in which the roll 91 is allowed to recede from its forward position. The combination of these two backward movements results in moving the grippers uickly out of the way of the delivery mechanism. The carrier 71 has a rearwardlv extending arm 102 which is normally pressed upward by coiled spring. This spring acts to keep the swinging arms 19, only one of which 1s seen.

The carriers 71 are located. This spring roll 88 in contact with the track 89 and forces the roll backward into the recess 107.

For a fuller descriptionof this mechanism.

reference is made to the parent application; The gripping mechanism is now ready to travel up to seize the next sheet.

Coming now to the delivery gripping mechanism proper, the depending arms 19 are shown carrying between them a rocking shaft 123, upon which is mounted fast a lower gripper'jaw 124. On the said shaft are oscillatably mounted two castings 125, only one of which is seen, and these castings support a bar 126, upon which is mounted the other gripper j aw 127. The gripper aws are of course so positioned as to. conveniently enter the cut-out partions .70 in theupper. gripper:

mechanism. The said castings carry a. stop 128, and a spring 129 connects the rear portion of the casting with a pin 130. Another pin 131 is driven into-the shaft and between it and the pin 130 a spring 132 is is stronger-than the spring 129. .'A second stop 133 isalso mounted. in the casting' A cam roll 134 is provided which operates to open and close the grippers in a manner to be explained later. mechanism swings toward the platen to take the sheet from the same, the spring 132 overcomes the resistance of the spring 129 and forces the stop 133 into engagement with a pin 135 on the arm 19. When the gripper mechanism reaches the platen, the roll 134 comesinto contact with a cam 136, thereby turning the shaft 123 until the stop 128 under the influence of the spring 129 comes into contact with the pin 135. The cam 136 thereafter continues to turn the shaft 123 overcoming the resistance of the spring 132 until the grippers are opened.

The cam roll 134: now rides on the concentric raised portion of the cam 136, which in this position acts as a fixed cam. It will be seen from Fig. 2 that one gripper jaw is on one side of the sheet, while the other gripper jaw is on the other side of the sheet. Upon the continued motion of the machine, the cam 136 recedes suddenly, thus allowing the shaft 123 to be turned suddenly away from the platen. This has the effect of closing the grippers, inasmuch as no resistance is offered to the spring 132, and the sheet will be removed from the platen by a fly action (not shown). The upper gripping mechanism, as before stated, has moved out of 'tlie'way and thus presents no obstacle to the sheet in removing the same from the platen. This action of the delivery gripper mechanism is shown very clearly in Figs. 2 and 3, where also the means for operating the cam 136 is illustrated, which, in the present form, takes'the shape of a rotary cam 13? in engagement with a cam roll 138, carried by the cam 136, which is .may be 'As the delivery gripping,

conveniently pivoted in the frame-work at' 139 (see Fig. 4).

The delivery grippers now swing back, taking the sheet with them, until they reach a cam 140, which serves to open the grippers, which now let go of the sheet and deposit the same on the delivery table 141.

While I have illustrated and described a preferred form in which my invention may be embodied, and while I have shown it as it may be constructed when used in connectionfwith a particular type of printing machine,-I am aware that many modifications made therein, and that the invention can be adapted for use with other types of printing machines by any person skilled in the art without departing from the scopev of the invention as expressed in the claims. Therefore, I do not wish to be limited to the particular construction shown and described, but

What I do claimis:

1. In a printing machine, in combination, a delivery mechanism comprising a pair of swinging arms, a set of gripping jaws yieldingly movable relative tosaid arms, a second set of jaws also yieldingly movable relative to said arms, and mechanism for opening said jaws and for moving said jaws relative to said arms.

2. In a platen printing machine, in combination, a set of grippers spaced apart and adapted to hold a sheet in printing position on the platen and to remove the sheet from the platen, with a movable delivery mechanism comprising jaws adapted to project into the spaces between the first mentioned grippers to seize a sheet, and means for' a stronger spring for forcing the jaw in the opposite direction, a stop' for limiting the motion of the jaw in both directions, and a cam for moving the jaw in the direction in which it is urged by the weaker spring.

' 5. Aprinting machine having'a delivery mechanism comprising a movable arm, a.

fishaft thereon, a jaw on the shaft, means for forcing said jaw in a certain direction, a stronger means for forcing the jaw in the opposite direction, a stop for limiting the motion of the jaw in both directions, a cam for moving the jaw in the direction in which it is urged by the weaker means, and means site direction, said cam having a concentric portion for holding the frame in position to keep the jaws open.

In testimony whereof I have hereunto set 15 my hand, in the presence of two subscribing witnesses.-

THOMAS C. SHEEHAN.

Witnesses:

J AMES S. WRIGHT, PAUL N ATHAN. 

